# A018113 (b-file synthesized from sequence entry)
0 1
1 3
2 5
3 11
4 23
5 51
6 111
7 242
8 529
9 1159
10 2537
11 5556
12 12167
13 26645
14 58351
15 127785
16 279841
17 612835
18 1342071
19 2939052
20 6436343
21 14095197
22 30867617
23 67598189
24 148035889
25 324189523
26 709955184
27 1554758333
28 3404825447
29 7456359024
30 16328969211
31 35759441655